SD File System Hello World
Dependencies: SDFileSystem mbed
Dependents: SDFileSystem SDFileSystemv2 SDFileSystem_HelloWorld GEO_SHOW2ME_F411RE ... more
Legacy Warning
This is an mbed 2 example. To learn more about mbed OS 5, visit the docs.
main.cpp@1:e4d7342be507, 2017-05-16 (annotated)
- Committer:
- mbed_official
- Date:
- Tue May 16 05:18:55 2017 +0000
- Revision:
- 1:e4d7342be507
- Parent:
- 0:bdbd3d6fc5d5
Update libraries
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 0:bdbd3d6fc5d5 | 1 | #include "mbed.h" |
mbed_official | 0:bdbd3d6fc5d5 | 2 | #include "SDFileSystem.h" |
mbed_official | 0:bdbd3d6fc5d5 | 3 | |
mbed_official | 0:bdbd3d6fc5d5 | 4 | SDFileSystem sd(p5, p6, p7, p8, "sd"); // the pinout on the mbed Cool Components workshop board |
mbed_official | 0:bdbd3d6fc5d5 | 5 | |
mbed_official | 0:bdbd3d6fc5d5 | 6 | int main() { |
mbed_official | 0:bdbd3d6fc5d5 | 7 | printf("Hello World!\n"); |
mbed_official | 0:bdbd3d6fc5d5 | 8 | |
mbed_official | 0:bdbd3d6fc5d5 | 9 | mkdir("/sd/mydir", 0777); |
mbed_official | 0:bdbd3d6fc5d5 | 10 | |
mbed_official | 0:bdbd3d6fc5d5 | 11 | FILE *fp = fopen("/sd/mydir/sdtest.txt", "w"); |
mbed_official | 0:bdbd3d6fc5d5 | 12 | if(fp == NULL) { |
mbed_official | 0:bdbd3d6fc5d5 | 13 | error("Could not open file for write\n"); |
mbed_official | 0:bdbd3d6fc5d5 | 14 | } |
mbed_official | 0:bdbd3d6fc5d5 | 15 | fprintf(fp, "Hello fun SD Card World!"); |
mbed_official | 0:bdbd3d6fc5d5 | 16 | fclose(fp); |
mbed_official | 0:bdbd3d6fc5d5 | 17 | |
mbed_official | 0:bdbd3d6fc5d5 | 18 | printf("Goodbye World!\n"); |
mbed_official | 0:bdbd3d6fc5d5 | 19 | } |